and master conformation of alkanes, isomerism, cis-trans isomerism and enantiomorphism;
烷烃构、同分异构、顺反异构和对映异构现;
and master conformation of alkanes, isomerism, cis-trans isomerism and enantiomorphism;
烷烃构、同分异构、顺反异构和对映异构现;
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